rhsa-2023_2257
Vulnerability from csaf_redhat
Published
2023-05-09 10:02
Modified
2024-11-06 02:53
Summary
Red Hat Security Advisory: tigervnc security and bug fix update
Notes
Topic
An update for tigervnc is now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
Virtual Network Computing (VNC) is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients.
Security Fix(es):
* xorg-x11-server: XkbGetKbdByName use-after-free (CVE-2022-4283)
* xorg-x11-server: XTestSwapFakeInput stack overflow (CVE-2022-46340)
* xorg-x11-server: XIPassiveUngrab out-of-bounds access (CVE-2022-46341)
* xorg-x11-server: XvdiSelectVideoNotify use-after-free (CVE-2022-46342)
* xorg-x11-server: ScreenSaverSetAttributes use-after-free (CVE-2022-46343)
* xorg-x11-server: XIChangeProperty out-of-bounds access (CVE-2022-46344)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.2 Release Notes linked from the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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{
"cve": "CVE-2022-46341",
"discovery_date": "2022-12-08T00:00:00+00:00",
"ids": [
{
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}
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{
"category": "description",
"text": "A vulnerability was found in X.Org. This issue occurs because the handler for the XIPassiveUngrab request accesses out-of-bounds memory when invoked with a high keycode or button code. This flaw can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "xorg-x11-server: XIPassiveUngrab out-of-bounds access",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Xorg server does not run with root privileges in Red Hat Enterprise Linux 8 and 9, therefore Red Hat Enterprise Linux 8 and 9 have been rated with a Moderate severity.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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{
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"details": "Moderate"
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"title": "xorg-x11-server: XIPassiveUngrab out-of-bounds access"
},
{
"cve": "CVE-2022-46342",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
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"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2151757"
}
],
"notes": [
{
"category": "description",
"text": "A vulnerability was found in X.Org. This flaw occurs because the handler for the XvdiSelectVideoNotify request may write to memory after it has been freed. This flaw can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "xorg-x11-server: XvdiSelectVideoNotify use-after-free",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Xorg server does not run with root privileges in Red Hat Enterprise Linux 8 and 9, therefore Red Hat Enterprise Linux 8 and 9 have been rated with a Moderate severity.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"title": "Statement"
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{
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{
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},
{
"category": "external",
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}
],
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{
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"date": "2023-05-09T10:02:37+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-46344"
},
{
"category": "external",
"summary": "RHBZ#2151760",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2151760"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-46344",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-46344"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-46344",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-46344"
}
],
"release_date": "2022-12-14T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2023-05-09T10:02:37+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"restart_required": {
"category": "none"
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"url": "https://access.redhat.com/errata/RHSA-2023:2257"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"threats": [
{
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"details": "Moderate"
}
],
"title": "xorg-x11-server: XIChangeProperty out-of-bounds access"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.